Medicament dispenser



April 2,- 1940. R, w s 2,195,675

MEDICAMENT DISPENSER Filed Dec. 7, 1935 IN VEN TOR: 77 0567776274? I 814/4 ls,

A TTORNEYS.

Patented Apr. 2, 1940 T UNITED T T S- ATEN O CEJ h mmcam afi'r ziisransaa I I I Rosemarie Lewis, Loam 2 Claims. The present invention has relation to means for applying ointment'to internal body surfaces.

Fig. 2 is a substantially corresponding view I showing the device filled and ready for use.

Fig. 3 illustrates the appearance of the device after use, and

Fig 4 shows a modified structure the operation of which will hereinafter be fully explained.

As illustrated in Fig. 1, the device comprises a tube I, on each end of which is mounted a tip 2, and within which a plug 3 is shown seated to slide. The tube, as shown, is perfectly plain and it should be made from transparent material in order that its contents may always be exposed to inspection. The plug 3 is slidabiy seated within the tube and it is preferably of a color which offers contrast to the contents of the tube in order to facilitate such inspection.

The tips 2 are preferably exactly alike and they are made with inner bored sockets 2 slightly smaller in diameter than the tubing. They are made from somewhat resilient material, such as a rubber composition, in order that they may easily be pressed on to the-ends of the tube and remain in position until forcibly withdrawn by hand. Into the opposite end of the tips is sunk a bore of a suitable diameter, which may be identical with bore 2, and a smaller bore 2 is carried through the wall between bores 2 and 2 By making this middle bore smaller than the inner diameter of the tube, it is seen that the plug 3 is held confined within the tube when the-tips are mounted in position. And it is also appreciated that, by merely pulling one or both tips away from the tube, the plug may be removed and each part of the device may be thoroughly cleaned and disinfected.

The tube is filled with medicaments from one end in any suitable manner, as by placing the threaded end of a collapsible tube within the bore 2, and the ointment passing into the tube pushes the plug 3 along to the opposite end, until it comes to stop against the wall 2; A measured quantity is in this manner deposited within the tube without waste. 5 To apply the ointment, it is now necessary to insert the endof the device,'away from the plug, into the bodily cavity to be treated, whereupon a pushrod 5 is caused to enter the exposed tip to return the plug in theopposite direction and thereby to expel the ointment into the cavity. It maybe well to provide a large head 6 on the pushrod to form a base upon which the device may be caused to stand upon completion of the i treatment and until it is convenient to take the device apart for cleaning and sterilizlng, substantially as shown in Fig. 3.

From the foregoing, it is seen that I provide a very simple and inexpensive device, which is more sanitary than any other device that has It I come to my attention. As the plug is held confined by the middle wall of the two tips, it follows that a measured quantity is delivered to the place of application whereas, if no plug were provided, there would be nothing to stop the ointment from being wasted and no certainty as to the quantity dispensed. And it is even more important to note that, as the plug is removable upon withdrawal of the tips, a plug of different length, or a plurality of plugs may be placed in the tube, thereby to vary the quantity to be dispensed. For nasal application, for example, only a small quantity might be required and can be correctly determined by insertion of the proper plus- The device of Fig. 3 is shownslightly modified in that one end of the tube I is shown contracted to form a neck I, on to which the tip Bis pressed. In this case, the inner surface of this neck may serve to guide the pushrod 5. And the plug is removable from the opposite end of the tube. Both ends may, of course, be contracted to form necks l' only that, in such case it is not possible to remove the plug for cleaning.

The modified'device of Fig. 4 comprises a tube III, also made from thin transparent material, such as glass or some cellulose composition, and it is provided at each end with screw threads Ill adapted to receive a pair of threaded tips. A plug I2 is seated to slide within the tube, and it is held confined between the ends of the tube, the inner diameter of which of necessity becomes reduced in pressing the screw threads into the tube ends. ll

dnthiseasethescrewthreadsoitheother endoi-thetipsmaybeoiasizetoreeeivethe threaded neck-l3 of a collapsible tube ll, by

-meansorwhichthetub'emaybenlied. Thisalso vice. Also it is noted that no change or plug can t be eflected to vary the quantity dispensed.

8oi'arasIknow,Iamtheflrsttoprovideadevice which can be taken apart and again assembled and by means oi which predetermined quantities may be dispensed. While a rod is shown for dispensing the contents of the tube, I wish it understood that other means may be substitu'ted, if preferred.

r m! I I a I l. A device of the class described, comprising a tube having one end thereof internally threaded for releasably connecting the tubeto a container,

the outer edge of the threaded end of the tube being rounded and smooth. a member attached to the other end of the tube, and a rod passing through the member into the tube and longitudinally siidabl'e in the tube.

2. Adevice oi the class described, comprising a tube having one end thereof internally adapted for releasably connecting the tube to a container, the outer edge or said end of the tube being rounded and smooth, a member attached tethe other end of the tube, and a rod passing through said member into the tube and longitudinally slidable therein.

ROBEMARIE LEWIS. 

